Jackie Cheng serves as Director at Exelixis since October 2021, bringing a wealth of experience in bioanalytical sciences from previous roles. Prior to this, Jackie was at Precision For Medicine from May 2016 to October 2021, where positions included Scientific Director, Associate Director, and Senior Scientist, leading teams to develop various bioanalytical assays for clinical trial projects. Earlier experience includes a Scientist role at Applied Immunology, where Jackie enhanced assay sensitivity for clinical trials and developed assays for viral transduction efficiency. As a Postdoctoral Fellow at MedImmune and UC Berkeley, Jackie contributed significantly to therapeutic antibody research and cellular analytics, leading to multiple publications in prestigious journals.